Distinguishing acute from chronic aortic dissections using CT imaging features
AbstractThe aim was to compare computed tomography (CT) features in acute and chronic aortic dissections (AADs and CADs) and determine if a certain combination of imaging features was reliably predictive of the acute versus chronic nature of disease in individual patients. Consecutive patients with aortic dissection and a chest CT scan were identified, and 120 CT scans corresponding to 105 patients were reviewed for a variety of imaging features. Statistical tests assessed for differences in the frequency of these features. A predictive model was created and tested on an additional 120 CT scans from 115 patients. Statistic...
Source: The International Journal of Cardiovascular Imaging - June 18, 2018 Category: Radiology Source Type: research

Do CTA measurements of annular diameter, perimeter and area result in different TAVI prosthesis sizes?
AbstractIncorrect prosthesis size has direct impact on patient outcome after transcatheter aortic valve implantation (TAVI) procedure. Currently, annular diameter, area or perimeter may be used for prosthesis size selection. The aim was to evaluate whether the use different annular dimensions would result in the selection of different prosthesis sizes, when assessed in the same TAVI-candidate during the same phase of a cardiac cycle. Fifty consecutive TAVI-candidates underwent retrospectively ECG-gated computed tomography angiography (CTA). Aortic root dimensions were assessed in the 20% phase of the R –R interval. A...
Source: The International Journal of Cardiovascular Imaging - June 16, 2018 Category: Radiology Source Type: research

Diffusion-weighted MRI and PET –CT in the follow up of chronic periaortitis
AbstractAim of the present study is to compare magnetic resonance imaging (MRI) and positron emission tomography (PET) parameters in the follow up of chronic periaortitis (CP), with a focus on changes in the apparent diffusion coefficient (ADC) and standardized uptake values (SUV). 127 patients with CP were treated in our urology between 2007 and 2017. We identified 14 patients with parallel abdominal MRI and PET –CT examinations before therapy and in the follow up resulting in a total of 56 examinations. Relative contrast uptake and diffusion-weighted MRI parameters were compared to SUV in the corresponding PET&ndas...
Source: The International Journal of Cardiovascular Imaging - June 15, 2018 Category: Radiology Source Type: research

Importance of computed tomography pre-procedural planning in the customization of a high-risk hybrid double valve intervention
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - June 12, 2018 Category: Radiology Source Type: research

Left heart longitudinal deformation analysis in mitral regurgitation
AbstractIn mitral regurgitation (MR), left atrium (LA) and left ventricle (LV) undergo remodeling even if the patient is asymptomatic. The aim of our study was to identify the best echo index that correlates with MR severity in asymptomatic patients affected by MR. We enrolled 150 MR patients (50: mild, 50: moderate, 50: severe), asymptomatic for exertional dyspnea and 50 healthy controls. MR was graded using Doppler quantitative method. All underwent standard and Speckle Tracking Echocardiography (STE) with analysis of global peak atrial longitudinal strain (PALS), LV longitudinal strain (LS) and global atrio-ventricular ...
Source: The International Journal of Cardiovascular Imaging - June 9, 2018 Category: Radiology Source Type: research

The effect of different treatment strategies on left ventricular myocardial deformation parameters in patients with chronic renal failure
AbstractThe aim of this study was to compare left ventricular (LV) functions by speckle tracking echocardiography (STE) in chronic kidney disease (CKD) patients in various stages and under different renal replacement treatments in order to evaluate possible differences between them. This prospective study included 150 patients with CKD. Renal transplantation patients with glomerular filtration rate greater than 60  ml/min/1.73 m2, patients receiving hemodialysis three times a week, and patients in the predialysis stage with glomerular filtration rate less than 30  ml/dk/1.73 m2 were assigned into Group ...
Source: The International Journal of Cardiovascular Imaging - June 9, 2018 Category: Radiology Source Type: research

Diagnostic accuracy of multi-slice computed tomography in identifying lesion characteristics in coronary total occlusion
AbstractWe performed this study to compare the sensitivity and specificity of multi-slice computed tomography (MSCT) to coronary angiography (CA) in detecting coronary total occlusion (CTO) lesion characteristics. Moreover, we analyzed the association between these characteristics and the risk of revascularization failure. Fifty patients with confirmed CTO diagnosis were tried for revascularization using the antegrade (all 50) or retrograde (in failed nine antegrade interventions) approaches. Each patient underwent CA and MSCT before the intervention and data from both modalities were compared using the SPSS software. Succ...
Source: The International Journal of Cardiovascular Imaging - June 8, 2018 Category: Radiology Source Type: research

Superficial wall stress: the long awaited comprehensive biomechanical parameter to objectify and quantify our intuition
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - June 6, 2018 Category: Radiology Source Type: research

Semi-automatic CT-angiography based evaluation of the aortic annulus in patients prior to TAVR: interchangeability with manual measurements
AbstractTo compare a semi-automatic software tool for the measurement of aortic annulus dimensions with manual measurements by expert readers and to analyze whether and to what extent interchangeability exists between semi-automatic and manual measurements. We retrospectively included 374 consecutive patients with high-grade aortic stenosis who had undergone CT-angiography of the heart prior to trans-catheter aortic valve replacement (TAVR). In independent analyses, two expert readers manually measured aortic annulus dimensions (long axis, short axis, circumference, area) as well as the distance of the coronary ostia from ...
Source: The International Journal of Cardiovascular Imaging - June 5, 2018 Category: Radiology Source Type: research

The relationships between the pulsatile flow form of ocular microcirculation by laser speckle flowgraphy and the left ventricular end-diastolic pressure and mass
AbstractTo evaluate the relationships between parameters of the pulsatile flow form in the optic nerve head shown by laser speckle flowgraphy (LSFG) and the left ventricular (LV) end-diastolic pressure and mass obtained by echocardiography. We cross sectional analyzed the cases of 175 subjects who had undergone polysomnography. Standard M-mode two-dimensional color Doppler imaging was performed to evaluate the E/e ′ ratio (which represents the LV end-diastolic pressure) and LV mass. The pulsatile flow form analysis parameters of the blowout score and acceleration time index were evaluated. The parameters were analyze...
Source: The International Journal of Cardiovascular Imaging - June 1, 2018 Category: Radiology Source Type: research

A review in enormity of OCT and its enduring understanding of vulnerable plaque in coronary bifurcation lesion
AbstractOptical coherence tomography (OCT) has emerged as one of the most promising tools to assist the optimization of percutaneous coronary intervention (PCI). Its ability to provide unique information on the plaque at high risk for rupture, plaque composition, the thickness of the fibrous cap, the presence of macrophage and thrombi has not only assisted simple PCI but also in many complex bifurcation lesions PCI. OCT has helped to provide valuable anatomic information to optimize stent implantation and adapt PCI strategy in individual patients. This review article summarizes the current role of OCT as an imaging technol...
Source: The International Journal of Cardiovascular Imaging - June 1, 2018 Category: Radiology Source Type: research

Brief cardiovascular imaging with pocket-size ultrasound devices improves the accuracy of the initial assessment of suspected pulmonary embolism
AbstractPulmonary embolism onset is frequently neglected due to the non-specific character of its symptoms. Pocket-size imaging devices (PSID) present an opportunity to implement imaging diagnostics into conventional physical examination. The aim of this study was to test the hypothesis that supplementation of the initial bedside assessment of patients with suspected pulmonary embolism (PE) with four-point compression venous ultrasonography (CUS) and right ventricular size assessment with the use of PSID equipped with dual probe could positively influence the accuracy of clinical predictions. A single-centre, prospective a...
Source: The International Journal of Cardiovascular Imaging - May 30, 2018 Category: Radiology Source Type: research

Comparison of quantitative imaging parameters using cardiovascular magnetic resonance between cardiac amyloidosis and hypertrophic cardiomyopathy: inversion time scout versus T1 mapping
AbstractTo compare inversion time (TI) parameters, native T1, and extracellular volume (ECV) on cardiac magnetic resonance (CMR) imaging between patients with cardiac amyloidosis (CA) or hypertrophic cardiomyopathy (HCMP). Forty six patients with biopsy-confirmed CA and 30 patients with HCMP who underwent CMR were included. T1 and TI values were measured in the septum and cavity of the left ventricle on T1 mapping and TI scout images. TI values were selected at nulling point for each myocardium and blood pool. Native T1, ECV, and TI interval values were significantly different between the CA (1170.5  ±&thinsp...
Source: The International Journal of Cardiovascular Imaging - May 30, 2018 Category: Radiology Source Type: research

Impact of different annuloplasty rings on geometry of the mitral annulus with fibroelastic deficiency: the significance of aorto –mitral angle
AbstractWe sought to investigate the impact of full annuloplasty rings versus C-shape bands on mitral annular geometry in the presence of fibroelastic deficiency (FED), as assessed by intraoperative three-dimensional transesophageal echocardiography (3DTEE). We retrospectively selected 65 patients who underwent mitral valve repair for severe mitral regurgitation caused by FED using full rings (the Ring group, n  = 30) and C-shape bands (the Band group, n = 35). 71 controls without valvular heart disease were also included. Thorough 3DTEE inspections were performed for the entire cohort to measur...
Source: The International Journal of Cardiovascular Imaging - May 29, 2018 Category: Radiology Source Type: research

Findings on 3D speckle tracking echocardiography in asymptomatic methamphetamine abusers
AbstractTo detect potential cardiac abnormalities in asymptomatic methamphetamine abusers using three-dimensional speckle tracking echocardiography (3D STE). Fifty-three male methamphetamine abusers, free of cardiac symptoms/signs, were enrolled in this study. A control group of 53 age-matched male normal subjects was studied for comparison. Standard 3D, flow and tissue Doppler echo with measurements of left ventricular end-diastolic volume (LVEDV), end-systolic volume (LVESV), ejection fraction (LVEF), the ratio of the early to late diastolic transmitral filling velocity (E/A), the ratio of the early diastolic transmitral...
Source: The International Journal of Cardiovascular Imaging - May 28, 2018 Category: Radiology Source Type: research

Prognostic value of revascularising viable myocardium in elderly patients with stable coronary artery disease and left ventricular dysfunction: a PET/CT study
AbstractSparse information is available on the role of cardiac viability imaging in elderly patients. We aimed at evaluating the prognostic value of FDG-PET/CT in elderly patients with stable coronary artery disease (CAD) and reduced left ventricular ejection fraction (rLVEF) before revascularisation. Elderly patients (>  65 years old, mean 74 ± 7 years old) with CAD and rLVEF were followed after cardiac FDG-PET/CT and stratified according to presence/absence of viable myocardium and subsequent revascularisation. Fatal events of any cause as well as hospitalisations related to acute...
Source: The International Journal of Cardiovascular Imaging - May 28, 2018 Category: Radiology Source Type: research

Quantification of coronary atherosclerotic burden with coronary computed tomography angiography: adapted Leaman score in Croatian patients
AbstractThe aim of the study was to quantify the total coronary atherosclerotic burden in patients with suspected coronary artery disease (CAD) defined by coronary computed tomography adapted Leaman score (CT-LeSc) and to estimate its cut-off level for high coronary atherosclerotic burden. We enrolled 434 consecutive patients referred to coronary computed tomography angiography, of which 261 patients fulfilled the study inclusion criteria. Demographic and clinical characteristics, as well as CAD risk factors were obtained. CAD pre-test probabilities were estimated by the Diamond-Forrester model and Morise score. The corona...
Source: The International Journal of Cardiovascular Imaging - May 25, 2018 Category: Radiology Source Type: research

Investigation of elastic features of aorta and color M-mode flow propagation velocity (APV) of descending aorta in the patients with ischemic and non-ischemic dilated cardiomyopathy
AbstractAortic flow propagation velocity (APV) is a novel echocardiographic parameter used in coronary artery disease. It has also been used for the evaluation of aortic stiffness. In the present study, APV was measured in patients with ischemic and non-ischemic dilated cardiomyopathy (DCM) and was compared with the parameters of aortic stiffness such as aortic distensibility (AD) and aortic strain (AS). A total of 140 patients who had undergone coronary angiographic imaging were included in the study. Out of these patients, 44 had ischemic DCM, 46 had non-ischemic DCM, and 50 had normal coronary angiography (control group...
Source: The International Journal of Cardiovascular Imaging - May 24, 2018 Category: Radiology Source Type: research

Right ventricular function and mechanics in chemotherapy- and radiotherapy-na ïve cancer patients
AbstractThe present research evaluated right ventricular (RV) structure, function and mechanics in the cancer patients before initiation of chemo- or radiotherapy, and the association between cancer and decreased RV longitudinal strain. This retrospective investigation included 101 chemo- and radiotherapy-na ïve patients with solid cancer and 38 age- and gender-matched controls with similar cardiovascular risk profile. Echocardiographic examination and strain evaluation was performed in all participants. RV structure and RV systolic and diastolic function estimated with conventional echocardiographic p arameters were ...
Source: The International Journal of Cardiovascular Imaging - May 24, 2018 Category: Radiology Source Type: research

Quantification of aortic stiffness in stroke patients using 4D flow MRI in comparison with transesophageal echocardiography
AbstractTo quantify stiffness of the descending aorta (DAo) in stroke patients using 4D flow MRI and compare results with transesophageal echocardiography (TEE). 48 acute stroke patients undergoing 4D flow MRI and TEE were included. Intima-media-thickness (IMT) was measured in the DAo and the aorta was scrutinized for atherosclerotic plaques using TEE. Stiffness of the DAo was determined by (a) 4D flow MRI at 3  T by calculating pulse wave velocity (PWV) and by (b) TEE calculating arterial strain, stiffness index, and distensibility coefficient. Mean IMT was 1.43 ± 1.75. 7 (14.6%) subjects had no ...
Source: The International Journal of Cardiovascular Imaging - May 24, 2018 Category: Radiology Source Type: research

Erupted coronary atheroma: insights from multi-modality imaging
AbstractA 58-year-old gentleman with prolonged chest pain and 20-min ST-segment elevation in inferior lead on Holter monitoring was hospitalized. Multi-slice computed tomography identified severe stenosis with low density area and positive remodeling. Despite the suggestive features of vulnerable lesion, intravascular ultrasound and near-infrared spectroscopy imaging identified ruptured plaque without any lipidic material which were contrary to findings from multi-slice computed tomography. Lipidic materials may travel into coronary circulation following its spontaneous rupture, resulting in zero lipid core burden index. M...
Source: The International Journal of Cardiovascular Imaging - May 24, 2018 Category: Radiology Source Type: research

Left atrial myocardial dysfunction after chronic abuse of anabolic androgenic steroids: a speckle tracking echocardiography analysis
AbstractAnabolic –androgenic steroids (AAS) are used by power athletes to improve performance. However, the real effects of the chronic consumption of AAS on cardiovascular structures are subjects of intense debate. To detect by speckle tracking echocardiography (STE) underlying left atrial (LA) dysfunction in ath letes abusing AAS and assess possible correlation between LA myocardial function and exercise capacity during cardiopulmonary stress test. 65 top-level competitive bodybuilders were selected (45 males), including 35 athletes misusing AAS for at least 5 years (users), 30 anabolic-free bodybuilders (n on-user...
Source: The International Journal of Cardiovascular Imaging - May 22, 2018 Category: Radiology Source Type: research

Feasibility of intracardiac echocardiography imaging from the left superior pulmonary vein for left atrial appendage occlusion
AbstractIntracardiac echocardiography (ICE) is considered an alternative imaging modality for left atrium appendage occlusion (LAAO) to avoid general anesthesia. However, the quality of ICE images obtained from right atrium can be suboptimal compared with transesophageal echocardiography (TEE) imaging. Although placing an ICE probe into left atrium can improve imaging quality, there are limited data regarding procedure outcomes of ICE-guided LAAO versus TEE-guided LAAO. One hundred forty four patients who underwent LAAO with Amplatzer Cardiac Plug, Amulet, or Watchman device were enrolled from two referral institutes. TEE-...
Source: The International Journal of Cardiovascular Imaging - May 22, 2018 Category: Radiology Source Type: research

Variability of native T1 values: implication for defining regional myocardial changes using MRI
AbstractThe aim of the present study was to establish T1 variation (T1v) thresholds for duplicated measurements of regional T1 values in left ventricle (LV) using magnetic resonance imaging (MRI). Eighteen healthy volunteers were recruited to undergo two consecutive cardiac MRI scans using modified Look-Locker Inversion recovery (MOLLI) with two spatial resolutions on different days to repeat T1 measurements on LV. The absolute differences (d) and standard deviations (SDs) of regional T1 values were acquired with the two scans and two readers. T1v threshold (mean difference  + 2SD), intra-class correlation co...
Source: The International Journal of Cardiovascular Imaging - May 22, 2018 Category: Radiology Source Type: research

One-year optical coherence tomography findings in patients with late and very-late stent thrombosis treated with intravascular imaging guided percutaneous coronary intervention
The objective is to describe the 1-year optical coherence tomography (OCT) findings of patients suffering from late/very-late ST treated with intravascular imaging guided percutaneous coronary intervention (PCI). All consecutive patients with late/very-late ST undergoing intravascular imaging guided PCI were screened to undergo coronary angiography and OCT examination at 1  year. Patients were classified according to the observation of stent malapposition as most contributing cause of the ST. Thirty-four patients were included. Stent malapposition was observed in 17 (50%) and the remaining 17 cases were classified as:...
Source: The International Journal of Cardiovascular Imaging - May 22, 2018 Category: Radiology Source Type: research

Differences between first-generation and second-generation drug-eluting stent regarding in-stent neoatherosclerosis characteristics: an optical coherence tomography analysis
AbstractWe compared first-generation and second-generation drug-eluting stent (DES) with respect to neoatherosclerosis using optical coherence tomography or optical frequency domain imaging. In-stent restenoses in 102 first-generation and 114 second-generation DES were retrospectively assessed. Neoatherosclerosis, which was defined as the presence of lipid-laden neointima or calcification inside a stent, was observed in 33 (27.2%) and 31 (32.4%) lesions in the first-generation and second-generation DES respectively. In the first-generation DES group, the lipid length was significantly longer (5.5  ± 3....
Source: The International Journal of Cardiovascular Imaging - May 21, 2018 Category: Radiology Source Type: research

Clinical outcomes of complete revascularization using either angiography-guided or fractional flow reserve-guided drug-eluting stent implantation in non-culprit vessels in ST elevation myocardial infarction patients: insights from a study based on a systematic review and meta-analysis
AbstractCurrent guidelines recommend that percutaneous coronary intervention (PCI) should be restricted to the culprit vessel in ST elevation myocardial infarction (STEMI) patients with multi-vessel disease (MVD) and without cardiogenic shock. However, newer data suggests that performing complete revascularization (CR) in MVD patients may lead to better outcomes compared to intervention in the culprit vessel only. The aim of this meta-analysis is to examine the available data to determine if CR (using either angio- or fractional flow reserve guidance —FFR) following primary PCI in STEMI patients without cardiogenic s...
Source: The International Journal of Cardiovascular Imaging - May 19, 2018 Category: Radiology Source Type: research

Diagnostic value of myocardial deformation pattern in children with noncompaction cardiomyopathy
We describe left ventricular (LV) deformation patterns in children with NCC, with the goal of identifying a potential diagnostic pattern. We prospectively enrolled 30 children with NCC (47% male; mean age 7.2  years) and 30 age- and gender-matched controls. Extent and severity of non compaction in each segment were evaluated in LV 16-segment model. Regional (base, mid and apex) and segmental (16 segments) longitudinal strain (LS), circumferential strain (CS) and radial strain (RS) were measured using sp eckle tracking echocardiography. In all patients with NCC, regional and segmental CS and RS at the apex were signifi...
Source: The International Journal of Cardiovascular Imaging - May 16, 2018 Category: Radiology Source Type: research

A New modified anthropometric haller index obtained without radiological exposure
AbstractTo validate a new modified method for measuring the anthropometric Haller index (HI), obtained without radiological exposure. This new method was based on the use of a rigid ruler and of a 2.5  MHz ultrasound transducer for the assessment of latero-lateral and antero-posterior chest diameters, respectively. We enrolled 100 consecutive patients (mean age 67.9 ± 14.5 years, 55% males), who underwent a two-plane CXR, for any clinical indication, over a four-month period. In all patien ts, the same radiologist calculated the conventional radiological HI (mean value 1.93 ±&th...
Source: The International Journal of Cardiovascular Imaging - May 15, 2018 Category: Radiology Source Type: research

Patient-related factors influencing detectability of coronary arteries in 320-row CT angiography in infants with complex congenital heart disease
AbstractTo investigate the performance of second-generation 320-row computed tomographic (CT) angiography (CTA) in detecting coronary arteries and identify factors influencing visibility of the coronary arteries in infants with complex congenital heart disease (CHD). Data of 60 infants (aged 0 –2 years, median 2 months) with complex CHD who underwent examination using 320-row CTA with low-dose prospective electrocardiogram-triggered volume target scanning were reviewed. The coronary arteries of each infant were assessed using a 0–4-point scoring system based on the number of coronary segments with a visibl...
Source: The International Journal of Cardiovascular Imaging - May 5, 2018 Category: Radiology Source Type: research

Myocardial perfusion reserve and global longitudinal strain as potential markers of coronary allograft vasculopathy in late-stage orthotopic heart transplantation
In conclusion, MPRi and GLS are abnormal in late-stage OHT and ass ociated with CAV, but not related to allograft rejection, myocardial scar/fibrosis, or allograft dysfunction. Non-invasive monitoring of MPRi and GLS may be a useful strategy to detect CAV. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - May 4, 2018 Category: Radiology Source Type: research

Electrocardiography based prediction of hypertrophy pattern and fibrosis amount in hypertrophic cardiomyopathy: comparative study with cardiac magnetic resonance imaging
AbstractAlthough, cardiac magnetic resonance imaging (CMR) is a gold standard for risk stratification of hypertrophic cardiomyopathy (HCM), is limited in some situations. We sought to evaluate the predictive power of quantitative electrocardiography in assessing hypertrophy pattern and fibrosis in HCM. Eighty-eight patients with HCM were studied. Voltage of R –S–T waves, number of fragmented QRS (fQRS) complexes, and T wave morphology were measured by 12-lead electrocardiography. Sixteen segmental thickness, late gadolinium enhancement (LGE), native T1, extracellular volume fraction (ECV), and T2, left ventricu...
Source: The International Journal of Cardiovascular Imaging - May 4, 2018 Category: Radiology Source Type: research

Echocardiographic measurements of epicardial adipose tissue and comparative ability to predict adverse cardiovascular outcomes in patients with coronary artery disease
AbstractThe present study aimed to compare echocardiography measurements of epicardial adipose tissue (EAT) thickness and other risk factors regarding their ability to predict adverse cardiovascular outcomes in patients with coronary artery disease (CAD). Outcomes of 107 patients (86 males, 21 females, mean age 63.6  years old) submitted to diagnostic echocardiography and coronary angiography were prospectively analyzed. EAT (measures over the right ventricle, interventricular groove and complete bulk of EAT) and left ventricle ejection fraction (LVEF) were performed by echocardiography. Coronary complexity wa s evalu...
Source: The International Journal of Cardiovascular Imaging - May 2, 2018 Category: Radiology Source Type: research

Paclitaxel-coated balloon treatment for functionally nonsignificant residual coronary lesions after balloon angioplasty
AbstractThere is limited data on the efficacy of paclitaxel-coated balloon (PCB) compared to stents for de novo coronary lesions. The purpose of this study was to compare the efficacy of PCB treatment with stent implantation for de novo coronary lesions after successful plain old balloon angioplasty (POBA) guided by fractional flow reserve (FFR). In 200 patients scheduled for elective percutaneous coronary intervention (PCI) for de novo lesions, FFR was measured after POBA (POBA –FFR). If POBA–FFR was ≥ 0.75, patients were treated with PCB (PCB group, n = 78) or stent (Stent group, n&thi...
Source: The International Journal of Cardiovascular Imaging - April 26, 2018 Category: Radiology Source Type: research

Computer-aided analysis of 64- and 320-slice coronary computed tomography angiography: a comparison with expert human interpretation
We examined index and 30 Day outcomes by diagnosis for each scanner and the human reader. 60% of cases could be triaged by the computer. Sensitivity was approximately 85% for both scanners, with specificity at 50.6% for the 64 slice and at 56.5% for the 320 slice scanner (per person measures). The NPV was 97.8 and 97.1 for the 64 and 320 slice scanners, respectively. Results for the four major vessels were similar with negative predictive values ranging from 97 to 100%. The ROC for Computer Aided Diagnosis for the 64 and 320 Slice Scanners, using the human reader as the gold standard was 0.6794 and 0.7097 respectively. The...
Source: The International Journal of Cardiovascular Imaging - April 25, 2018 Category: Radiology Source Type: research

Left atrial deformation as a potent predictor for paroxysmal atrial fibrillation in patients with end-stage renal disease
AbstractIt is widely known that various factors contribute to left atrial (LA) mechanical dysfunction in patients with end stage renal disease (ESRD). However, the connection between atrial dysfunction and arrhythmic events such as paroxysmal atrial fibrillation (PAF), in this group of patients, remains unclear. The purpose of our study was to evaluate prospectively the association between LA deformation indices and PAF in ESRD patients. 79 patients (41 men, mean age 57  ± 17) with ESRD and preserved left ventricular systolic function comprised the study population. All patients underwent a baseline co...
Source: The International Journal of Cardiovascular Imaging - April 21, 2018 Category: Radiology Source Type: research

Myocardial flow reserve derived by dynamic perfusion single-photon emission computed tomography reflects the severity of coronary atherosclerosis
AbstractA novel single-photon emission computed tomography (SPECT) camera was developed to evaluate dynamic myocardial perfusion flow. However, it is unclear whether myocardial flow reserve (MFR) derived by dynamic perfusion SPECT using the novel SPECT camera (D-SPECT) reflects the severity of coronary atherosclerosis. In the present study, we therefore examined the relationship between MFR using D-SPECT and severity of coronary lesions. The study population comprised 40 patients who underwent both a myocardial dynamic perfusion SPECT study and invasive coronary angiography. The severity of coronary atherosclerosis was eva...
Source: The International Journal of Cardiovascular Imaging - April 20, 2018 Category: Radiology Source Type: research

Investigation of circle of Willis variants and hemodynamic parameters in twins using transcranial color-coded Doppler sonography
We examined CW morphology and recorded peak systolic velocity (PSV), end-diastolic velocity (EDV) and pulsatility index (PI). Raw heritability was determined for hemodynamic parameters, whereas concordance and discordance rates were cal culated for CW morphological variants. A normal CW anatomy was observed in the majority of MZ and DZ twins (76.5% and 92.3%, respectively). The most frequent variant was a missing anterior cerebral artery (ACA). There was no significant difference in the prevalence of most CW variants depending on t he zigosity. Concordance rates were low regarding the presence of variant CW anatomy both in...
Source: The International Journal of Cardiovascular Imaging - April 19, 2018 Category: Radiology Source Type: research

Fetal regional myocardial strain rate in the membranous ventricular septum: changes with gestational age and the left ventricular mass and predictive value for a complete membranous ventricular septum (without defect)
AbstractTo describe the fetal regional myocardial strain rate in the membranous ventricular septum across gestation and to determine their predictive value for a complete membranous ventricular septum (without defect) after delivery. In 1150 fetuses, the peak systolic strain rate (SRs), peak early diastolic strain rate (SRe) and peak late diastolic strain rate (SRa) in the membranous ventricular septum were measured at four time points across gestation (18 –20, 24–26, 30–32 and 36–38 weeks). The integrity of the interventricular septum was examined at 12 weeks’ postnatal age. The cor...
Source: The International Journal of Cardiovascular Imaging - April 17, 2018 Category: Radiology Source Type: research

Impact of different coarctation therapies on aortic stiffness: phase-contrast MRI study
This study aimed to non-invasively assess aortic stiffness between different repair or intervention strategies in patients with coarctation of the aorta. Forty-nine coarctation patients who underwent either surgery (n  = 26), balloon angioplasty (n = 14), or stent implantation (n = 12), and 26 age- and size-matched normotensive healthy controls underwent evaluation of thoracic aortic stiffness and flow hemodynamics via phase-contrast cardiac magnetic resonance. In children who had undergone surgical r epair or balloon angioplasty, ascending aortic stiffness was increased when measu...
Source: The International Journal of Cardiovascular Imaging - April 17, 2018 Category: Radiology Source Type: research

Validation of contrast-enhanced time-resolved magnetic resonance angiography in pre-ablation planning in patients with atrial fibrillation: comparison with traditional technique
AbstractBolus timing is critical to optimal magnetic resonance angiography (MRA) acquisitions but can be challenging in some patients. Our purpose was to evaluate whether contrast-enhanced time-resolved magnetic resonance angiography (TR-MRA), a dynamic multiphase sequence that does not rely on bolus timing, is a viable alternative method to conventional 3D fast-long angle shot contrast-enhanced magnetic resonance angiography (CE-MRA). Coronal subtracted conventional CE-MRA images in 50 consecutive patients presenting for pre-atrial fibrillation ablation pulmonary venous (PV) mapping were compared with 50 TR-MRA images per...
Source: The International Journal of Cardiovascular Imaging - April 16, 2018 Category: Radiology Source Type: research

Intravascular ultrasound assessment of the effects of rotational atherectomy in calcified coronary artery lesions
AbstractWe sought to clarify intravascular ultrasound (IVUS) features of rotational atherectomy (RA) of calcified lesions. IVUS was performed post-RA and post-stent in 38 lesions and analyzed every 1  mm. Pre-intervention IVUS was performed when the IVUS catheter crossed the lesion (n = 11). Calcium Index was average calcium angle multiplied by calcium length. We compared lowest (n = 13), middle (n = 13), and highest (n = 12) Calcium Index tertiles. Reverberations (multiple refl ections from calcium) with a concave-shaped lumen in the post-RA IVUS were considered...
Source: The International Journal of Cardiovascular Imaging - April 16, 2018 Category: Radiology Source Type: research

Optimizing right ventricular focused four-chamber views using three-dimensional imaging, a comparative magnetic resonance based study
This study main objective was to determine whether measurements from RV focused views derived from three-dimensional (3D) echocardiography (3D-RV-focused) are closely related to measurements from magnetic resonance (CMR). A first cohort of 47 patients underwent 3D echocardiography and CMR imaging within 2  h of each other. A second cohort of 25 patients had repeat 3D echocardiography to determine the test–retest characteristics; and evaluate the bias associated with unfocused RV views. Tomographic views were extracted from the 3D dataset: RV focused views were obtained using the maximal RV diamete r in the trans...
Source: The International Journal of Cardiovascular Imaging - April 13, 2018 Category: Radiology Source Type: research

Analysis of anomalous origin of coronary arteries by coronary angiography in Chinese patients with coronary artery disease
AbstractWith the development of coronary angiography for the diagnosis of coronary artery disease, its clinical significance in detecting coronary artery anomalies and evaluating the seriousness is attracting more attention. In the study we aimed to assess the prevalence of anomalous origin of coronary arteries in a Chinese population who underwent coronary angiography for coronary artery disease, and explore any patterns in the common variants and typical anomalies, especially the potentially serious ones. Patients who underwent coronary angiography from January 2013 to December 2016 in Fuwai Hospital were included. Basel...
Source: The International Journal of Cardiovascular Imaging - April 13, 2018 Category: Radiology Source Type: research

Cardiovascular imaging 2017 in the International Journal of Cardiovascular Imaging
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - April 13, 2018 Category: Radiology Source Type: research

Early detection of cardiac alterations by left atrial strain in patients with risk for cardiac abnormalities with preserved left ventricular systolic and diastolic function
This study sought to examine whether early cardiac alterations could be detected by left atrial (LA) strain in patients with risk for cardiac abnormalities. In this cross-sectional and retrospective study, we included patients with (n  = 234) and without (n = 48) risk for cardiac abnormalities (i.e. those with arterial hypertension, diabetes mellitus and/or a history of coronary artery disease) of similar age and with preserved left ventricular (LV) systolic and diastolic function according to standard criteria. LA strain was significantly altered in patients with risk for cardiac abnormalities ...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Reference ranges for three-dimensional feature tracking cardiac magnetic resonance: comparison with two-dimensional methodology and relevance of age and gender
This study provides reference ranges for 3D FT-CMR and assesses its reproducibility compared to 2D FT-CMR. One hundred healthy individuals with 10 men and women in each of 5 age deciles from 20 to 70 years, underwent 2D and 3D FT-CMR of left ventricular myocardial strain and strain rate using SSFP cines. Good health was defined by the absence of hypertension, diabetes, obesity, dyslipidaemia, or any cardiovascular, renal, hepatic, haematological and systemic inflammatory disease. Normal values for myocardial strain assessed by 3D FT-CMR were consistently lower compared with 2D FT-CMR measures [global circumferential strain...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Cardiac function in patients with polymyositis or dermatomyositis: a three-dimensional speckle-tracking echocardiography study
AbstractCardiac event is a major cause of death in patients with idiopathic inflammatory myopathies (IIM). The most frequent IIMs are polymyositis (PM) and dermatomyositis (DM). The purpose of this study was to analyze cardiac involvement by three-dimensional speckle-tracking echocardiography (3D STE) in patients with PM or DM, and to identify the relationship of cardiac injury with clinical characteristics and disease-specific parameters. 60 PM/DM patients with preserved left ventricular ejection fraction and 30 matched healthy controls were assessed by conventional echocardiography, 3D STE with biventricular strain analy...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Cardiac structure and function in elite Native Hawaiian and Pacific Islander Rugby Football League athletes: an exploratory study
AbstractThe aim of this exploratory study was to define the Athletes Heart (AH) phenotype in Native Hawaiian& Pacific Islander (NH&PI) Rugby Football League (RFL) athletes. Specifically, (1) to describe conventional echocardiographic indices of left ventricle (LV) and right ventricle (RV) structure and function in NH&PI RFL players and matched RFL Caucasian controls (CC) and (2) to demonstrate LV and RV mechanics in these populations. Ethnicity is a contributory factor to the phenotypical expression of the AH. There are no data describing the cardiac phenotype in NH&PI athletes. Twenty-one male elite NH&...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Mechanical deformation in adult patients with unrepaired aortic coarctation
AbstractAortic coarctation is a congenital heart disease that causes an increased left ventricular afterload, resulting in increased systolic parietal tension, compensatory hypertrophy, and left ventricular systolic and diastolic dysfunction. The speckle tracking is a new echocardiographic technique that allows the detection of subclinic left ventricular systolic  dysfunction. The aim of this study was to detect early left ventricular dysfunction using mechanical deformation by echocardiography in adults with un-repaired aortic coarctation. A total of 41 subjects were studied, 20 patients with aortic coarctation and 2...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research